.html_introduction_content_1 ul{
    width:936px;
    overflow:hidden;
    margin:0px auto;
    padding-left: 10px;
}

.html_introduction_content_1 ul li{
    width:269px;
    float:left;
    margin-right: 64px;

}

.html_introduction_content_1 ul li.last, .html_introduction_content_1 ul li:last-child{
    margin-right: 0px;

}

.html_introduction_content_1 ul li h2{
    font:18px 'Lusitana', serif;
    color:#364349;
    margin-bottom: 15px;
}
.html_introduction_content_1 ul li p{
    font:11px Tahoma;
    color:#838282;
    margin-bottom: 15px;
    line-height: 1.5em;
}

.html_introduction_content_1 ul li img{
    width:265px;
    height:142px;
    margin-bottom: 15px;
}